Josiah Spode is known to have worked for Thomas Whieldon from the age of 16 until he was 21.
He then worked in a number of partnerships until he went into business for himself, renting a small potworks in the town of Stoke-on-Trent in 1767; in 1776 he completed the purchase of what became the Spode factory until 2008.
Underglaze "hot-press" printing was limited to the colours that would withstand the subsequent glaze firing, and a rich blue was the predominant colour.
To adapt the process from the production of small porcelain teawares to larger earthenware dinnerwares required the creation of more flexible paper to transmit the designs from the engraved copper plate to the biscuit earthenware body, and the development of a glaze recipe that brought the color of the black-blue cobalt print to a brilliant perfection.
It was light in body, greyish-white and gritty where it was not glazed and approached translucence in the early wares; later Stone-Ware became opaque.
Spode pattern books, which record about 75000 patterns, survive from about 1800. Messrs Spode were succeeded in the same business in c.
The tissue was then floated off in water, leaving the pattern adhering to the plate.
Josiah Spode earned renown for perfecting under-glaze blue transfer printing in 1783–1784 – a development that led to the launch in 1816 of Spode's Blue Italian range which has remained in production ever since.
Josiah Spode I effectively finalised the formula, and appears to have been doing so between 17. The importance of his innovations has been disputed, being played down by Professor Sir Arthur Church in his English Porcelain, estimated practically by William Burton, and being very highly esteemed by Spode's contemporary Alexandre Brongniart, director of the Sèvres manufactory, in his Traité des Arts Céramiques, and by M. As the understanding of the work of the early potters depends in part on the study of actual specimens, the loss was both aesthetic and scientific.
The business was carried on through his sons at Stoke until April 1833.
Spode's London retail shop in Portugal Street went by the name of Spode, Son, and Copeland.
Among the many surviving Spode documents are two shape books dated to about 1820 which contain thumbnail sketches of bone china objects with instructions to throwers and turners about size requirements.